nxos_facts: cdp support (#31202)

* nxos_facts get CPD neighbor

* nxos_fact: cdp support

* remove blank spaces

* add ansible_net_neighbors cdp informations

lib/ansible/modules/network/nxos/nxos_facts.py

@@ -128,7 +128,7 @@ ansible_net_interfaces:
   returned: when interfaces is configured
   type: dict
 ansible_net_neighbors:
-  description: The list of LLDP neighbors from the remote device
+  description: The list of LLDP/CDP neighbors from the remote device
   returned: when interfaces is configured
   type: dict
 
@@ -297,6 +297,10 @@ class Interfaces(FactsBase):
         if data:
             self.facts['neighbors'] = self.populate_neighbors(data)
 
+        data = self.run('show cdp neighbors detail', 'json')
+        if data:
+            self.facts['neighbors'] = self.populate_neighbors_cdp(data)
+
     def populate_interfaces(self, data):
         interfaces = dict()
         for item in data['TABLE_interface']['ROW_interface']:
@@ -347,6 +351,23 @@ class Interfaces(FactsBase):
 
         return objects
 
+    def populate_neighbors_cdp(self, data):
+        objects = dict()
+        data = data['TABLE_cdp_neighbor_detail_info']['ROW_cdp_neighbor_detail_info']
+
+        if isinstance(data, dict):
+            data = [data]
+
+        for item in data:
+            local_intf = item['intf_id']
+            objects[local_intf] = list()
+            nbor = dict()
+            nbor['port'] = item['port_id']
+            nbor['sysname'] = item['device_id']
+            objects[local_intf].append(nbor)
+
+        return objects
+
     def parse_ipv6_interfaces(self, data):
         try:
             data = data['TABLE_intf']